Water closet bowl



Sept. 30, 1941. v A. HOFFMANN WATER oLosET BowL l Filed Nov. 24, 1959 #0729@ /qHo/-F/vH/wv INVE OR.

BY 4 ATTOREY.

Patented Sept. 30, 1941 i UNITED STATES PATENT OFFICE WATER CLOSET BOWL Victor A. Hoffmann, Harvey, Ill. Application November 24, 1939, Serial No. 305,823

A( CL 4-69) 4 Claims,

i Thisinvention relates to an improved water closet bowl and is a continuation in part of my co-pending application Serial No. 235,317, filed October 17, 1938, now Patent No. 2,213,394, granted September 3, 1940.

The improved device of this invention comprises a stack-hung bowl, the rear portion of which is adapted to be positioned against and engage a wall or supporting plate. The connections to the soil pipe and the iiush pipe are adapted to be made from the front of the device. Consequently, the necessity for the conventional working space in the wall or between the bowl and the wall is entirely eliminated.

One of the principal objects of importance and advantage of the improved device of this invention resides in the provision of means for lessening the lift required to more quickly start siphonio action.

Another and further important object of advantage resides in the provision of means for facilitating siphonic action as the bowl is emptied.

A still further object of advantage and impor- 25 tance resides in the provision of means whereby a soil pipe tting and a flush pipe may be operably secured to the rear of said bowl entirely from the front and without any working space whatsoever being required in the rear of said bowl. Y

Still another object of advantage and importance resides in the provision of means for properly aligning and maintaining in proper alignment during installation of the device,ithe ange which forms a part of the flush pipe securing assembly. l

An additional object of importance and advantage is the provision of means whereby difficulty in starting the flush pipe securing bolts and the independent rotation of the flange of the flush pipe securing assembly are totally eliminated.

Additional objects of' advantage and importance will become apparent as the following'detailed description progresses, reference being had to the accompanying drawing, wherein Fig. l is a side elevational View of a water closet bowl which embodiesthe invention.

Fig. 2 is a Vertical section taken on line 2---2` of Fig. 1.

. Fig. 3 is a slightly sectional view taken on line 3-3 of Fig. 2.

As shown in the drawing:

The reference numeral I 0 indicates generally the bowl of the improved device of this invennon. It win be apparent that the bowl lo may vary in the size and shape from the preferred embodiment shown in the drawing without departing from the scope of theinvention.

Formedin the top of the bowl on the inside surface thereof is a flush ring I2. The flush ring I2 is perforated, as at I4, to discharge water downwardly into the bowl III.

Formed at the rear of the bowl `I 0 is a restricted portion I6. The sides of the restricted portion I 6 are substantially iiat, as is clearly shown in the drawing.

Formed at the rear of the restricted portion I6 ,u and extending transversely thereof is a securing 15 plate I8. V The securing plate I8 is perforated, as at 2li, to receive securing bolts for attaching the improved device of this invention to an anchor plate 22 or other supporting member. proved bowl of this invention is adapted to be attached to a fitting of the kind disclosed in my co-pending application Serial No. 235,317.

Passing through the securing plate I8 near the upper end thereof and thenceA extending horizontally through the restricted portion I 6 and into the iiush ring I2 is a passageway 24. The passageway `24 is adapted to convey water from the flush pipe 26 into the bowl II).V Y

Formed on opposite sides of the passageway `24 and extending through the plate I8 are stud receiving openings 28. The stud receiving open-V Vadapted to engage a resilient sealing member 32. 1 VThe resilient sealing member 32 is preferably constructed of rubber.

Positioned to the rear of the sealing member 32 and in engagement therewith is a gland 34.` Threaded stud receiving openings are formed at opposite ends of the gland 34, as is best shown in Figs. 2 and 3.

Screw-threadedly positioned in each threaded opening in the gland, is a'threaded stud 36. The studs 3B are preferably of greater length than the distance between the front of the plate I8 and the gland 34. Consequently, nuts may be started on the outwardly projecting ends of the stud-s 36 preparatory to drawing the gland and sealing member 32 in water-tight association with the bevelled seat 30 ofthe plate I8.

Positioned on the outwardly extending end of each stud 36 and in engagement with the front surface of the plate I8, is a cap-nut 38. The nuts 38, as is clearly shown in the drawing, are closed at one end.

The im- Extending rearwardly from the rear lower portion of the bowl l is a discharge passageway 40. The discharge end of the passageway 40 is adapted to be connected to a soil pipe 42. The opening of the passageway 40, indicated by the reference numeral 44, is of substantially oval formation, as is best shown in Fig. 2. The horizontal diameter of the opening 44 is much greater than the vertical diameter. This substantially oval or elliptical formation gives way to a circular formation as the passageway progresses rearwardly.

It will be apparent that because the horizontal diameter of the opening 44 is increased, decreasing the vertical diameter thereof will not lessen its volume. Moreover, the loweredlip or edge et allows the lower portion 48 of the upper elbow of a Siphon to be considerably lowered and yet provide a water seal of a depth required ,by

building and sanitary codes or regulations.

It will be apparent that-as the siphon is lowered thus decreasing the distance between the bottom of the `discharge passageway 40 and the lower edge 48 of the upper part of the siphon, action is facilitated. Y

yIn 4the present construction, the portion 48 of siphonic the Siphon is ve and one-half inches above the bottom of the discharge passageway 4U. If a three-inch water seal, as required by code, is to be maintained in a similar structure using a conventional three-inch soil pipe, the part 48 of the Siphon must be six-inches above the floor of the discharge lopening 40. This half-inch lowering of the siphon quickens and facilitates siphonic action when the bowl is flushed.

.Y In securing the improved bowl of this invention to the supporting plate and operably connecting the flushV pipe thereto, all operations may beperformed from the front of the device. The gland 34 is first positioned onthe pipe 26. The studs 36 are secured to the gland. The sealing member-32 is then positioned on the pipe in front of the gland 34.` The ,bowl is then positioned against the securing plate 22 `andthe studs 36 are passed through the apertures 28. The capnuts 38 may then be employed to draw the gland 34 and sealingnmember 32 into liquid-tight association with the bevelled portion of the plate Y I8.v The entire assembly is accomplished from the -front of the bowl. No working space of any kind is required in the wall or in the rear of the bowl. The bowl securing bolts which are inserted through the apertures 20 are also tightened from the front. Y

kIt' will be apparent Afrom the foregoing that K herein is provided an efcientand sturdy device which complies with codes and regulations requiring a three-inch water seal, yet allows a f three-inch `siphon to be positioned with the lower surface of its upper elbow but five and one-half inches above the iloor'of the discharge pipe.

`It will also be apparent from the foregoing that herein is provided an improved water closet,V

having Vconcealed jointsv throughout, which may be installed withoutany working space, whatsoever, in the rear of thefdevice.

VIt will be apparent to those skilled in the art to which the device appertains that numerous changes and alterations in construction and design may be made al1 without departing from the spirit or scope of this invention. Accordingly,

is not to be limited to the preferred embodiment here disclosed nor in any Vother manner except as necessitated by the terminology of the appended claims when given the range of equivalents to which they may be entitled.

I claim as my invention:

1. In a stack hung bowl having a vertical attaching portion, a flush pipe receiving opening at the top of said bowl, a passageway extending from said opening through said vertical portion into the interior of the bowl, and a discharge passageway extending from the bottom of the bowl through the lower portion of the vertical attaching portion and then upwardly to provide a water seal, said discharge passageway having a portion wherein the bottom surface is substantially level in a longitudinal direction and the upper surface thereof is inclined upwardly toward the discharge end thereof.

"2. In a stack hung bowl having a vertical attaching portion, a flush pipe receiving opening at the top of said bowl, a p-assageway extending from said opening through said vertical portion into the interior of the bowl, a discharge passageway having a substantially elliptical opening eX- tending from the bottom of the bowl through the lower portion vof the vertical attaching portion, said discharge-passageway gradually taking circular form as it progresses toward said attaching portion, the bottom surface of said discharge 3. In a water closet bowl having a vertical at-V taching portion, a flush pipe receiving opening at .the top of said bowl, a passageway extending from said opening through saidV vertical portion into the interior of said bowl, a discharge passageway extending from the bottom of said bowl through the lower portion of the vertical attaching portion, and means formed of portions of said discharge passageway for facilitating and quick-` ening siphonic action when said bowl is flushed, said last named means including a relatively level bottom surface and an inclined upper surface within said passageway, the distance between the level lower surface and the inclined upper surface gradually increasing toward the discharge end of the passageway,

4. In a water closet bowl adapted to be connected to a siphon discharge stack, means operable from the front for securing a flush pipe to the rear of said bowl, a discharge opening extending from the interior of said bowl into said siphon discharge stack, and means `for maintaining a water seal in said discharge assembly of greater depth than the distance between the upper interior surface at the dischargeend ofthe discharge passageway and the lowest point of the over-flow surface of the siphon; said means in- 

